If those who deny the truth were to fight you, they would certainly turn their backs; then they would find neither protector nor helper:
(और) अगर कुफ्फ़ार तुमसे लड़ते तो ज़रूर पीठ फेर कर भाग जाते फिर वह न (अपना) किसी को सरपरस्त ही पाते न मददगार